I'm not an expert, but I've read that synthetic's molecules are smaller so you might get gasket leaks when there was none before. If you swap and there are no leaks I'd think you'd be good... Experts weigh in?
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2001 T/A WS6 A4 NBM - ASC# 7836
SLP lid, ARH LT's, catted y, Borlamouth, minor suspension
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